



A question that is often asked in my presentations and discussions on liquidity is "Does the industry affect a firm's liquidity?" Our research suggests that the answer is overwhelmingly yes. Firms in competitive industries with thin margins tend to become more liquid to survive. We provide examples from two industries—the small-scale electric tram industry and the large-scale airline industry.
The electric tram industry is typically owned by the government, has no competition, runs on specific tracks, requires dedicated infrastructure, has employees that focus on a single firm (most cities have only one tram service), and is not liquid.
In contrast, the airline industry, with extensive competition and thin margins, is a good representative of a liquid industry. Airlines lease airplanes, personnel, reservation systems, food services, and maintenance staff, which enables them to quickly and rapidly start and stop services in a city, i.e., change directions. As an example of airline industry liquidity, Portugal’s EuroAtlantic Airways, Latvia’s SmartLynx Airlines, and Lithuania’s Avion Express rent out planes with pilots, cabin staff, fuel, and insurance coverage to fill short-term demand or charters. Similarly, British Airways and Iberia have business class cabins in Europe that can easily be expanded or contracted based on demand.
Even within an industry, we find that sectors with heavier regulation have lower levels of liquidity. For example, in the financial services industry, heavily regulated retail banks have lower liquidity than lightly regulated credit card firms.